Openning apps

[naix]

what is the difference between opening an application before dragging it into the app folder and dragging it into the app folder and then opening it?

I want to download firefox nightly to test it out but i dont want to install it into my mac. I already have firefox beta installed.

thanks in advance

 

[gorskiegangsta]

Only a select few applications require to be put in Applications folder in order to work properly. Most applications - even if downloaded from the Mac App Store - can be placed anywhere, including external storage media. You'll have no problem running Firefox from anywhere on the drive.

 

[MrCheeto]

The difference is that it isn't installed, it's just running from the disk image.

This blog shows the proper way to install apps and what a disk image is.